What is the evidence for the use of low-pressure pneumoperitoneum? A systematic review

Denise M D Özdemir-van Brunschot, Kees C J H M van Laarhoven, Gert-Jan Scheffer, Sjaak Pouwels, Kim E Wever, Michiel C Warlé, Denise M D Özdemir-van Brunschot, Kees C J H M van Laarhoven, Gert-Jan Scheffer, Sjaak Pouwels, Kim E Wever, Michiel C Warlé

Abstract

Background: Laparoscopic surgery has several advantages when compared to open surgery, including faster postoperative recovery and lower pain scores. However, for laparoscopy, a pneumoperitoneum is required to create workspace between the abdominal wall and intraabdominal organs. Increased intraabdominal pressure may also have negative implications on cardiovascular, pulmonary, and intraabdominal organ functionings. To overcome these negative consequences, several trials have been performed comparing low- versus standard-pressure pneumoperitoneum.

Methods: A systematic review of all randomized controlled clinical trials and observational studies comparing low- versus standard-pressure pneumoperitoneum.

Results and conclusions: Quality assessment showed that the overall quality of evidence was moderate to low. Postoperative pain scores were reduced by the use of low-pressure pneumoperitoneum. With appropriate perioperative measures, the use of low-pressure pneumoperitoneum does not seem to have clinical advantages as compared to standard pressure on cardiac and pulmonary function. Although there are indications that low-pressure pneumoperitoneum is associated with less liver and kidney injury when compared to standard-pressure pneumoperitoneum, this does not seem to have clinical implications for healthy individuals. The influence of low-pressure pneumoperitoneum on adhesion formation, anastomosis healing, tumor metastasis, intraocular and intracerebral pressure, and thromboembolic complications remains uncertain, as no human clinical trials have been performed. The influence of pressure on surgical conditions and safety has not been established to date. In conclusion, the most important benefit of low-pressure pneumoperitoneum is lower postoperative pain scores, supported by a moderate quality of evidence. However, the quality of surgical conditions and safety of the use of low-pressure pneumoperitoneum need to be established, as are the values and preferences of physicians and patients regarding the potential benefits and risks. Therefore, the recommendation to use low-pressure pneumoperitoneum during laparoscopy is weak, and more studies are required.

Keywords: Laparoscopy; Low pressure; Pain; Perioperative conditions; Pneumoperitoneum.

Figures

Fig. 1
Fig. 1
Flowchart of study search
Fig. 2
Fig. 2
A Meta-analysis of overall pain. B Shoulder pain
Fig. 2
Fig. 2
A Meta-analysis of overall pain. B Shoulder pain

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Source: PubMed

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